The stress of E-grade steel couplerknuckle was analyzed and the expression of stress intensity factor of the cracks on the couplerknuckle wrist area was given.
对重载列车E级钢钩舌进行了应力分析,导出了钩腕面裂纹的应力强度因子表达式。
2
Introduced are the research achievements in improving the service lives of sliding bearing and couplerknuckle, as well as the non destructive inspection for hot cracking in Japan.